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Analyse économique de l'application des détendeurs dans les conditionneurs d'air de taille moyenne utilisant les frigorigènes traditionnels, le R1234yf et le CO2.

Economic analysis of the application of expanders in medium scale air-conditioners with conventional refrigerants, R1234yf and CO2.

Auteurs : SUBIANTORO A., OOI K. T.

Type d'article : Article, Article de la RIF

Résumé

Expanders have been shown to improve the energy efficiencies of refrigeration systems. The current technology is also adequate to manufacture and integrate expanders to practical air-conditioners. In this paper, an economic analysis of the installation of expanders on to existing vapor compression cooling systems, particularly medium scale air-conditioners, is presented. Various refrigerants, including the established and the newly proposed varieties, are considered. From the investigations, it was found that when the expander efficiency is 50%, the payback periods of most conventional systems are below 3 years in high temperature countries with high electricity tariffs and are above 5 years in other countries. Expanders are especially attractive for the transcritical CO2 and the R404A systems. The payback periods are shorter for systems with highly efficient expanders, high cooling loads, high ambient temperatures and for low refrigerating temperature applications.

Documents disponibles

Format PDF

Pages : 1472-1482

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Economic analysis of the application of expanders in medium scale air-conditioners with conventional refrigerants, R1234yf and CO2.
  • Identifiant de la fiche : 30008137
  • Langues : Anglais
  • Sujet : Chiffres, économie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 5
  • Date d'édition : 08/2013

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